Oklahoma St. Cowboys "retro" baseball uniform. Not quite the Ultimate Baseball Look because of the belted pants, but a fine looking uniform nonetheless. Cool v-neck pullover jersey! More of this please! Attention Baltimore Orioles and San Francisco Giants, this is how you do orange and black! During the Robin Ventura era however, the Oklahoma State Cowboys did wear pullover jerseys and sansabelt baseball pants with a striped elasticized waistband.